LeCoultre*** Memovox Polaris II Blue*** 1970's
Jaeger LeCoultre Automatic 'LeCoultre' Polaris II HPG Memovox, Blue Dial/Bezel, Ref E870, 1970’s
Serial: 1343324
Circa: 1970’s
Reference: E870

DIAL: Blue dial signed Lecoultre. Blue central disc with triangle, MEMOVOX and HPG logo. Original hours and minutes baton hands with white central sweep seconds hand.
T SWISS T indication at 6 o’clock

CASE: 37mm, stainless steel with two crowns, screw down back ‘ring’ and acrylic glass, Blue rotating 60 min bezel

MOVEMENT: JLC Caliber 916, Self-winding movement with date and mechanical hand-wound alarm, 17 jewels

STRAP: Rubber Tropic Strap

MANUFACTURER: Jaeger LeCoultre

The Jaeger LeCoultre MEMOVOX is known as the original automatic alarm watch. The first MEMOVOX was released in 1950 with the hand-wound mechanical caliber 489. The MEMOVOX name is composed of two Latin words ‘memo’ and ‘vox’ that respectively mean remember and voice.
In 1956, Jager LeCoultre released the Caliber 815 Memovox, which was the first automatic alarm wristwatch with its signature ‘bumper’ self-winding movement.
This was followed by the caliber 825, which had the additional date module and became the most iconic layout for the MEMOVOX automatic date alarm wristwatch.
According to Jaeger LeCoultre, the second incarnation of the Memovox Polaris, Polaris II in 1970, was fitted with a high-frequency calibre with a balance oscillating at 28,800 vph.
In the American 'LeCoultre' version, the dial was marked HPG meaning High Precision Guarantee. Its one-piece screwed case gave the Jaeger-LeCoultre 916 alarm calibre increased volume of sound. Red and Grey color were available for visibility at different shallow depths, while the light blue color is the last colour in the spectrum to remain visible at great depth. 1120 examples of this model were manufactured.